.wrapper {
    padding-top: 70px;
}

.container {
    padding: 0 15px;
    margin: 0 auto;
}

/* 当头部导航出现滚动条时 */
@media (min-width: 420px) and (max-width: 570px) {
    .wrapper {
        padding-top: 87px;
    }
}

@media (min-width: 768px) {
    .container {
        width: 750px;
    }
    .wrapper {
        padding-top: 140px;
    }
}

@media (min-width: 992px) {
    .container {
        width: 970px;
    }
    .wrapper {
        padding-top: 70px;
    }
}

@media (min-width: 1200px) {
    .container {
        width: 1170px;
    }
    .wrapper {
        padding-top: 70px;
    }
}

.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 110;
    min-height: 70px;
    background-color: rgba(0, 0, 0, 0.88);
}

.top-nav-logo {
    width: 200px;
    height: 70px;
    line-height: 70px;
}

.top-nav-logo a {
    display: block;
    width: 200px;
    height: 70px;
    background-image: url(../images/1.png);
    background-size: contain;
    background-position: left center;
    background-repeat: no-repeat;
}

.top-nav-search {
    line-height: 70px;
    height: 70px;
    cursor: pointer;
}

.btn-search {
    background: transparent;
    border: 0;
    color: #fff;
    padding: 0;
    padding-left: 20px;
    cursor: pointer;
}

.btn-search>i {
    font-size: 16px;
}

.top-nav-menu {
    padding: 0 15px;
}

@media (max-width: 991px) and (min-width: 768px) {
    .top-nav-menu {
        float: left;
    }
}

.top-nav-menu ul {
    text-align: right;
    white-space: nowrap;
    overflow-x: auto;
}

.top-nav-menu li {
    position: relative;
    display: inline-block;
}

.top-nav-menu li a {
    display: block;
    position: relative;
    font-size: 14px;
    line-height: 70px;
    padding: 0 8px;
    margin: 0 5px;
    color: #bfbfbf;
}

.top-nav-menu li:first-child a {
    color: #fff;
}

.top-nav-menu li a:hover {
    color: #fff;
}

.top-nav-menu li:first-child a:after {
    background-color: #fff;
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 15px;
    margin: auto;
    width: 4px;
    height: 4px;
    transition: all 0.3s ease 0s;
}

@media (max-width: 1199px) and (min-width: 1024px) {
    .top-nav-menu li a {
        padding: 0;
        margin: 0 10px 0 0;
    }
}

@media (max-width: 764px) {
    .top-nav-menu li a {
        padding: 0;
        margin: 0 10px 0 0;
    }
    .top-nav-logo {
        width: 55px;
    }
    .top-nav-logo a {
        background-image: url(../images/2.png);
        width: 40px;
    }
    .top-nav-menu ul {
        text-align: left;
        margin-left: 20px;
    }
}

/* 头部结束 */

.recommend {
    padding: 40px 0 50px 0;
    background-image: url(../images/3.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-color: #000;
}

.recommend li {
    position: relative;
    width: 25%;
}

.recommend li:before {
    content: "";
    display: block;
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
    cursor: pointer;
    background-color: transparent;
    transition: background-color 0.3s cubic-bezier(0.4, 0.01, 0.165, 0.99);
}

.recommend li:hover:before {
    background-color: rgba(0, 0, 0, 0.3);
}

.recommend .container a {
    position: relative;
    display: block;
    height: 250px;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
}

.recommend li:nth-child(1) a {
    background-image: url(../images/4.jpg);
}

.recommend li:nth-child(2) a {
    background-image: url(../images/5.jpg);
}

.recommend li:nth-child(3) a {
    background-image: url(../images/6.jpg);
}

.recommend li:nth-child(4) a {
    background-image: url(../images/7.jpg);
}

.recommend li:nth-child(5) a {
    background-image: url(../images/8.jpg);
}

.recommend .first {
    width: 50%;
}

.recommend a>div {
    position: absolute;
    z-index: 1;
    bottom: 0;
    width: 100%;
    padding: 25px 20px 20px 20px;
}

.recommend a>div>h2 {
    font-size: 16px;
    color: #fff;
    line-height: 1.6;
}

.recommend a>div>p {
    color: #BFBFBF;
    padding: 15px 0 0;
    font-size: 14px;
}

.recommend .first a {
    height: 500px;
}

.recommend .date span {
    margin-right: 10px;
}

.recommend .date span:not(:nth-child(1)):before {
    content: '';
    display: inline-block;
    vertical-align: middle;
    width: 4px;
    height: 4px;
    margin-right: 10px;
    background: #BFBFBF;
}

@media (max-width: 767px) {
    .recommend {
        background: #000;
        padding: 0;
    }
    .recommend>.container {
        padding: 0;
    }
    .recommend li {
        width: 50%;
        padding: 4px 4px 0 0;
    }
    .recommend .no-padding {
        padding: 4px 0 0 0;
    }
    .recommend .container a {
        height: 120px;
    }
    .recommend .first a {
        height: 280px;
    }
    .recommend .first {
        padding: 0;
        width: 100%;
    }
}

@media (max-width: 1180px) {
    .recommend .date {
        display: none;
    }
}

/* 头部推荐部分结束 */

.main {
    padding: 30px 0 60px 0;
}

.main .main-nav {
    text-align: center;
    margin-bottom: 30px;
}

.main .main-nav li {
    position: relative;
    display: inline-block;
    padding: 6px 15px;
    margin: 0 2px;
}

.main .main-nav li:before {
    content: "";
    background-color: #d7d7d7;
    width: 1px;
    height: 15px;
    position: absolute;
    right: -2px;
    top: 8px;
    transform: rotate(45deg);
}

.main .main-nav li:after {
    content: "";
    background-color: #000;
    position: absolute;
    right: 0;
    bottom: -2px;
    width: 4px;
    height: 4px;
    left: 0;
    opacity: 0;
    margin: auto;
    transition: all 0.3s ease;
}

.main .main-nav li:first-child:after {
    opacity: 1;
}

.main .main-nav li:hover:after {
    opacity: 1;
}

.main .main-nav li:last-child:before {
    content: none;
}

.main .con li {
    position: relative;
    width: 25%;
    padding: 0 10px;
    margin-bottom: 20px;
}

.main .con li:nth-child(5) a {
    height: 375px;
    background-image: url(../images/13.jpg);
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}

.main .con li:nth-child(5) .des {
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 0;
    padding: 35px 23px 30px;
    background: linear-gradient(to bottom, transparent 0, rgba(0, 0, 0, 0.7) 100%);
    cursor: pointer;
    transition: all .3s ease;
}

.main .con li:nth-child(5) .des:hover {
    padding-bottom: 35px;
    background-color: rgba(0, 0, 0, 0.59)
}

.main .con li:nth-child(5) .des h2 {
    color: #FFF;
    font-weight: 600;
    font-size: 16px;
}

.main .con li>a {
    display: block;
    overflow: hidden;
}

.main .con li>a>img {
    transition: transform 0.3s ease-out;
}

.main .con li>a:hover>img {
    transform: scale(1.2, 1.2);
}

.main .con li img {
    display: block;
    height: auto;
    width: 100%;
    transition: transform 0.3s ease-out;
}

.main .con li .des {
    padding-top: 15px;
}

.des .categories {
    position: relative;
    font-size: 14px;
    margin: 20px 0 10px 20px;
}

.des .categories:before {
    content: '';
    position: absolute;
    background-color: #212226;
    width: 10px;
    height: 10px;
    left: -20px;
    top: 2px;
}

.des .title {
    margin-bottom: 10px;
}

.des .title a {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.6;
}

.des .desc p {
    color: #555;
    font-size: 14px;
    line-height: 1.8;
}

@media (min-width: 992px) {
    .main .con li {
        width: 33.33%;
    }
}

@media (min-width: 768px) {
    .main .con li {
        width: 33.33%;
    }
}

@media (min-width: 1200px) {
    .main .con li {
        width: 25%;
    }
}

@media (max-width: 767px){
    .main .con li {
        width: 100%;
    }
    .main .con li>a{
        max-height: 180px;
    }
    .main .con li>a>img{
        margin-top: -60px;
    }
}

.main .load-more{
    text-align: center;
    margin-top: 30px;
}

.main .load-more button{
    width: 130px;
    padding: 14px 35px;
    font-size: 14px;
    color: #888;
    background-color: #212226;
    border-color: #212226;
    color: #FFF;
    border-radius:5px; 
    transition: all 0.3s ease-in-out;
    cursor: pointer;
}

.main .load-more button:hover{
    width: 160px;
}

/* 主体内容部分结束 */